AirHint found the following cheapest return flights from Cologne (CGN) to Tallinn (TLL) in July 2025 (see full year).

Return flights

24 Jul - 07 Aug	Lufthansa
27 Jul - 01 Aug	Lufthansa
22 Jul - 29 Jul	Ryanair
21 Jul - 29 Jul	Ryanair
21 Jul - 28 Jul	Lufthansa
19 Jul - 22 Jul	Ryanair
15 Jul - 17 Jul	Austrian Airlines
18 Jul - 31 Jul	Lufthansa
19 Jul - 27 Jul	Ryanair
12 Jul - 21 Jul	Ryanair
20 Jul - 31 Jul	Lufthansa
26 Jul - 19 Aug	Ryanair
18 Jul - 20 Jul	Eurowings
27 Jul - 02 Aug	Lufthansa
19 Jul - 16 Aug	Lufthansa

Also check the deals for one-way flights from Cologne to Tallinn in July.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Cologne to Tallinn in July from $329

Return flights